2009 CHEVROLET CORVETTE engine coolant

CHECK COOLANT LEVEL
This message displays when the engine coolant level
is low. Have the cooling system serviced by your
dealer/retailer as soon as possible. SeeEngine Coolant
on page 5-34.
CHECK GAS CAP
This message displays if the fuel cap has not been fully
tightened. Check the fuel cap to make sure that it is
on properly. Once tightened, it takes at least one
overnight park to reset or clear this message. If both the
CHECK GAS CAP message and the malfunction
indicator lamp in the instrument panel cluster are on,
you may need to see your dealer/retailer for service.
SeeMalfunction Indicator Lamp on page 3-42for more
information.
CHECK OIL LEVEL
On some vehicles, this message displays and
two chimes sound if the oil level in the vehicle is low.
Once the vehicle senses a change in the engine
oil level, the light remains off.If this message appears after starting the engine, the
engine oil level may be too low. You may need to
add oil. SeeEngine Overheating on page 5-39.
To acknowledge the message, press the RESET button.
The message reappears every 10 minutes until this
condition changes.
CLOSE TRUNK TO MOVE TOP
This message displays and a sound will be heard if
the trunk is open while you are trying to operate the
convertible top. Make sure the trunk is closed before
operating the convertible top. SeeConvertible Top
(Manual) on page 2-59orConvertible Top (Power)
on page 2-66.
COMPETITIVE DRIVING MODE
This message displays and a sound will be heard
when the Competitive Driving mode is selected.
The instrument panel cluster light will be on when the
Competitive Driving mode is selected. The Traction
Control System (TCS) will not be operating while in
the Competitive Driving mode. Adjust your driving
accordingly. SeeRacing or Other Competitive Driving
on page 4-15for more information.
3-57

COOLANT OVER TEMPERATURE
This message displays and a sound will be heard if the
engine coolant exceeds 255°F (124°C). If you have
been operating the vehicle under normal driving
conditions, pull off the road, stop the vehicle, and turn
off the engine as soon as possible.
You can monitor the coolant temperature with the gages
button on the DIC or the engine coolant temperature
gage on the instrument panel cluster. SeeEngine
Overheating on page 5-39,DIC Operation and Displays
on page 3-49, andEngine Coolant Temperature
Gage on page 3-41.
To acknowledge the message, press the RESET button.
The message and sound will come back on until this
condition changes. If you do not press the RESET
button, the message remains on until the condition
changes.
CRUISE DISENGAGED
This message displays briey when you disengage the
cruise control system by stepping on the brake on
an automatic transmission vehicle or the clutch on a
manual transmission vehicle, or by turning off the cruise
control switch. SeeCruise Control on page 3-10for
more information.
ENGINE DRAG CONTROL ACTIVE
This message displays when engine drag control is
active. When driving in a lower gear in rainy, snowy, or
icy conditions and then letting up on the accelerator
or downshifting, the rear wheels may begin to slip and
this message displays. This message stays on for a
few seconds following the engine drag control event.
ENGINE OVERHEATED – STOP
ENGINE
This message displays and a sound will be heard when
the engine has overheated. Stop and turn the engine
off immediately to avoid severe engine damage.
SeeEngine Overheating on page 5-39.
ENGINE PROTECTION REDUCE
ENGINE RPM
This message displays if the engine oil temperature
exceeds 320°F (160°C). Check the engine coolant
temperature and engine oil level. If the engine is too hot,
seeEngine Overheating on page 5-39. The vehicle
may need service, so see your dealer/retailer.
You can monitor the oil temperature with the gages
button on the DIC. SeeDIC Operation and Displays
on page 3-49.
3-58

Multiple chimes sound when this message is displayed.
This message remains displayed and active until the
issue is resolved.
HEADLAMPS SUGGESTED
This message displays if it is dark enough outside and
the headlamps and the Twilight Sentinel®controls
are off. This message informs the driver that turning on
the exterior lamps is recommended. It has become
dark enough outside to require the headlamps and/or
other exterior lamps.
HIGH TIRE PRESSURE
This message displays when one or more of the tires is
over-inated. This message also displays LEFT FRONT,
RIGHT FRONT, LEFT REAR, or RIGHT REAR to
indicate which tire is affected. You can receive more
than one tire pressure message at a time. To read other
messages that may have been sent at the same time,
press the RESET button. If a tire pressure message
appears on the DIC, stop as soon as you can. Have the
tire pressures checked and set to those shown on the
Tire Loading Information label. SeeRun-Flat Tires
on page 5-69,Loading the Vehicle on page 4-22,
Inflation - Tire Pressure on page 5-70, andTire Pressure
Monitor System on page 5-73. The DIC also shows
the tire pressure values. SeeDIC Operation and
Displays on page 3-49.To acknowledge the message, press the RESET button.
A message reappears every 10 minutes until the
condition is corrected.
HOT ENGINE AIR CONDITIONING OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
To avoid added strain on a hot engine, the air
conditioning compressor is automatically turned off.
When the coolant temperature returns to normal, the A/C
operation automatically resumes. You can continue to
drive the vehicle. If this message continues to appear,
have the system repaired by your dealer/retailer as soon
as possible to avoid compressor damage.
ICE POSSIBLE
This message displays when the outside air temperature
is cold enough to create icy road conditions. Adjust your
driving accordingly.
LOW FUEL
This message displays when the fuel tank is less than
10 percent full and the display is turned off. A sound will
be heard when this message is displayed. Rell the
fuel tank as soon as possible. SeeFuel Gage on
page 3-48.
3-59

To acknowledge the message, press the RESET button.
The message reappears every ve minutes until this
condition changes.
If the REDUCED ENGINE POWER message is
displayed in combination with the COOLANT OVER
TEMPERATURE message, seeEngine Overheating on
page 5-39.
SERVICE ACTIVE HANDLING SYSTEM
This message displays if there is a problem with the
Active Handling System and the vehicle needs service.
The active handling system light on the instrument
panel cluster also turns on and a sound will be heard.
See your dealer/retailer. When this message is
displayed, the system is not working. Adjust your driving
accordingly. SeeActive Handling System on page 4-8
for more information.
SERVICE AIR CONDITIONING
This message displays when the electronic sensors that
control the air conditioning and heating systems are
no longer working. Have the climate control system
serviced by your dealer/retailer if you notice a drop in
heating and air conditioning efficiency.
SERVICE ANTILOCK BRAKES
If this message displays while you are driving, stop as
soon as possible and turn the ignition off. Then start the
engine again to reset the system. If the message
stays on, or comes back on again while you are driving,
the vehicle is in need of service. See your dealer/retailer.
If the antilock brake system (ABS) warning light is on
and the regular brake system warning light is not on, you
still have brakes, but do not have ABS. If the regular
brake system warning light is also on, you do not
have ABS and there is a problem with the brakes.
SeeAntilock Brake System (ABS) Warning Light
on page 3-39andBrake System Warning Light on
page 3-38.
If this message is displayed, the Traction Control
System (TCS) and the Active Handling System will also
be disabled. The DIC will scroll three messages:
SERVICE ANTILOCK BRAKES, SERVICE TRACTION
SYSTEM, and SERVICE ACTIVE HANDLING, and
the instrument panel cluster lights will come on along
with a sound. When the service message is displayed,
the computer controlled systems will not assist the
driver. Have the system repaired by your dealer/retailer
as soon as possible. Adjust your driving accordingly.
To acknowledge these messages, press the RESET
button.
3-63

long hills can cause the transmission uid temperature
to be higher than normal. If this message appears,
you may continue to drive at a slower speed. Monitor
the transmission uid temperature and allow it to cool
to at least 230°F (110°C). The transmission uid
temperature can be monitored with the gages button on
the DIC. SeeDIC Operation and Displays on page 3-49
andAutomatic Transmission Fluid on page 5-30.
Also check the engine coolant temperature. If it is also
hot, seeEngine Overheating on page 5-39.
If this message is displayed during normal vehicle
operation on at roads, the vehicle may need service.
See your dealer/retailer for an inspection.
If driving in a performance or competitive manner,
the use of (S) Sport Automatic Mode or (S) Sport
Manual Paddle Shift gear selection is recommended.
SeeAutomatic Transmission Operation on page 2-26
for more information.
To acknowledge the message, press the RESET button.
The message reappears every 10 minutes until this
condition changes. If you do not press the RESET
button, the message remains on the display until the
condition changes.TURN SIGNAL ON
This message displays and a sound will be heard if a
turn signal is left on for three-quarters of a mile (1.2 km).
Move the turn signal/multifunction lever to the off
position.
To acknowledge this message, press the RESET
button.
UNLATCH HEADER TO MOVE TOP
This message displays and a sound will be heard if you
try to lower the convertible top without rst unlocking
the top. Move the latch handle to unlock the convertible
top. SeeConvertible Top (Manual) on page 2-59or
Convertible Top (Power) on page 2-66.
3-69

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-5
Adding Equipment to the Outside of the
Vehicle......................................................5-5
Fuel................................................................5-6
Gasoline Octane............................................5-6
Gasoline Specications....................................5-6
California Fuel...............................................5-7
Additives.......................................................5-7
Fuels in Foreign Countries...............................5-8
Filling the Tank..............................................5-9
Filling a Portable Fuel Container.....................5-12
Checking Things Under the Hood....................5-12
Hood Release..............................................5-13
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-20
Engine Oil Life System..................................5-26
Engine Air Cleaner/Filter................................5-28
Automatic Transmission Fluid.........................5-30
Manual Transmission Fluid.............................5-31
Hydraulic Clutch...........................................5-31
Cooling System (Engine)................................5-32
Cooling System (Intercooler)...........................5-33Engine Coolant.............................................5-34
Engine Overheating.......................................5-39
Overheated Engine Protection
Operating Mode........................................5-41
Power Steering Fluid.....................................5-42
Windshield Washer Fluid................................5-43
Brakes........................................................5-44
Battery........................................................5-50
Jump Starting...............................................5-51
Rear Axle.......................................................5-55
Headlamp Aiming...........................................5-56
Bulb Replacement..........................................5-56
High Intensity Discharge (HID) Lighting............5-56
Halogen Bulbs..............................................5-57
Headlamps, Front Turn Signal, and
Parking Lamps..........................................5-57
Taillamps, Turn Signal, and Stoplamps............5-59
Replacement Bulbs.......................................5-59
Windshield Replacement.................................5-60
Windshield Wiper Blade Replacement..............5-60
Tires..............................................................5-62
Winter Tires.................................................5-63
Tire Sidewall Labeling...................................5-64
Tire Terminology and Denitions.....................5-66
Run-Flat Tires..............................................5-69
Section 5 Service and Appearance Care
5-1

Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while it is in
the vehicle. Static electricity discharge from the
container can ignite the fuel vapor. You can be
badly burned and the vehicle damaged if this
occurs. To help avoid injury to you and others:
Dispense fuel only into approved containers.
Do not ll a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed,
or on any surface other than the ground.
Bring the ll nozzle in contact with the inside
of the ll opening before operating the nozzle.
Contact should be maintained until the lling
is complete.
Do not smoke while pumping fuel.
Do not use a cellular phone while
pumping fuel.
Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing, and tools away from any
underhood electric fan.
{CAUTION:
Things that burn can get on hot engine parts and
start a re. These include liquids like fuel, oil,
coolant, brake uid, windshield washer and other
uids, and plastic or rubber. You or others could
be burned. Be careful not to drop or spill things
that will burn onto a hot engine.
5-12

A. Clutch Master Cylinder Reservoir (If Equipped).
SeeHydraulic Clutch on page 5-31.
B. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-43.
C. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-44.
D. Coolant Surge Tank and Pressure Cap. SeeEngine
Coolant on page 5-34.
E.Engine Air Cleaner/Filter on page 5-28.F. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-42.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-20.
H. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-20.
I.Engine Compartment Fuse Block on page 5-106.
J. Passenger Compartment Air Filter (Out of View).
SeePassenger Compartment Air Filter on page 3-30.
K.Battery on page 5-50.
5-15